Safety device for windows



Aug. 16, 1949. L, E LAMB 2,479,123

SAFETY DEVICE FOR WINDOWS Filed Dec. 16, 1946 2 Sheets-Sheet 1 Fig. 2.

Lev/is EILamb L/ZI.

Attorneys Aug. 1%, i949. 1.. E. LAMB 2479 123 SAFETY DEVICE FOR WINDOWS Filed Dec. 16, 1946 I 2 Sheets-Sheet 2 m 6 15a I6 7 9 20a Fig. 5.

i R a! I! L 31a :20 I2 Inventor I Lewis E. Lamb ttorneys Patented Aug. 16, 1949 SAFETY nEvIcE Fore-'wmnows I Lewis E. Lamb; ew;

Application neceinber c, 1946, Serial No.

i 4 claims;

This invention relates to new and useful inrif provements in safetydevices for windowsiand more particularly to a removable grating adapted for insertion in the outer lower channels. of 1 a windowirame to prevent unauthorized persons from gaining access therethrough.

The primary feature of this invention is to provide a'device of this character which is applied to said window frame without marring the surface of said frame and which can be quickly removed from said window frame and locked therein by conventional lock means.

Another important feature of this invention is to'provide a device of the character referred to having an expansion plate means wherebysaidv deviceis adjustable to fit tightly in said window frame Without the necessity of screws, =bolts or the like.

A further feature of this invention is to provide a device of the character referred to'that is strong and durable in construction, eflicient and reliable in operation, relatively inexpensive to manufacture and otherwise well' adapted for the-purposes for which the same is intended,

'Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a front elevational view of the device applied to a window frame on the outside of the window and. locked in position thereto;

Figure 2 is a sectional view taken on the line 2-2 of Figure 1;

Figure 3 is an enlarged sectional view taken on the line 3-3 of Figure 1;

Figure 4 is a perspective view of the device removed from a window frame, and

Figure 5 is a fragmentary front elevational View of the device in slightly modified construction removed from a window frame, with parts broken away and shown in section.

Referring now to the drawings in detail, wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 represents the window frame having a window 6. The grating or guard is composed of outer parallel upright posts or metal bars 1 and 1a and inner parallel upright metal bars 8 and 8a. Placed equi-distantly between bars 1 and 8 and bars 1a and 8a is a plurality of intermediate vertical bars 9 and 9a, said intermediate bars 9 are connected to each other and the outer bar 1 and inner bar 8 by aplurality of upper nest:-

horizontal l0 and -lower horizontal.

erqssbars l-l nd: intermediate ba s as are con" n ctedtq sash; ethergand the outer bar in and.

inner bar delay a plurality of usher horizontal ss ba 1 an a plurali v lqwe mammal cross. pars Ha,

.Ihe l wer-en 1281 6112 Of Outr bars, .l and;

1e resneetively extend d wnwardly below the. lower ends of intermediate bars. 9 .,@Z,11i9 J?-.d inner bars 8 and fi therehyr sing. slightly the intermediatebars 8 and-9a an ends of the intermediate bars9 and 9a; and; the

' uter W 1a ando h a rn r nds"? an Ida of said intermediate bars 9 and 9a, are decreased in' height as they ex end ou wardly as-is v Pivo suit I 5; and lfiq' of anailjjq .lockinebars I1 and Ha one tar as for example i1ct adapted to bear slightly against one side of the intermediate bars and the other bar as for example Ila adapted to bear slightly against the opposite side of said intermediate bars.

A spacing block I8 is suitably secured between the inner faces of said locking bars l1 and [1a and said block is adapted to bear against an expansion plate I9 which is suitably secured at |9a to the outer edge of inner bar 8a when bars I 1 and [1a are lowered, thereby pushing the outer edges 20 andv2lla of the outer :bars 1 and 1a against the window frame.

A substantially U-shaped stop 2| is suitably carried by the bar 8a at substantially the center jected position overlying the free ends of the locking bars l1 and Na to lock the bars in their 'lowered position with the edges of the grating or guard secured between the stiles of the frame 5 'as shown in Figure 3. V

The grating is applied quite simply to a window frame 5, by merely placing the outer edges of the outer bars 1 and 1a against the window frame her bar and a rom t e bot m of the w dy fr me. send m re or less-centered vertically-in saidwiad wa T u pe z ii' n o the nne t s 8 d we -rrei r b r le ses-t an th uppe 3 outside the lower window without the use of screws, bolts or other attaching means.

The locking bars I! and Ila are then lowered and block 18 bears forcibly against expansion plate H! as the bars I! and Ha are lowered there- If the grating is to be installed where there are y no window stiles, holes (not shown) may be bored 2. A window guard comprising a pair of grills adapted for positioning upright in the sash channels at the opposite sides of a window frame, a locking bar pivoted to one grill and engaging the other grill to hold the grills in a spread apart relation in the opposite sides of a window frame, and a key controlled lock carried by one of the grills and engaging the locking bar to lock the latter against releasing movement.

3. A window guard comprising a pair of grills adapted for positioning upright in the sash channels at the opposite sides of a window frame, a

' locking bar pivoted to one grill, a sloping abutin the casing, or whatever is used for the window.

frame, and corresponding extensions 3! and 3| a made on the outer edges of the outer bars 1 and la to fit into said holes (see Figure 5).

The device is easily removed from the window 6 frame by insertion of the correct key in lock 22,

to retract the bolt and locking bars I! and Na are raised upwardly and inner bars Band 8a are pulled toward each other loosening the grating which then is pulled outwardly from the frame.

In view of the foregoing description taken inconjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary. 7

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

I claim: 7

1. A window guard comprising a pair of grills adapted for positioning upright in the sash channels at the opposite sides of a window frame, a locking bar pivoted to one grill and engaging the other grill to hold the grills in a spread apart relation in the opposite sides of a window frame, and means carried by one of the grills and engaging the locking bar to lock the latter against releasing movement.

ment carried by the other grill and engaged by a part of the locking bar upon a locking movement thereof to spread the grills apart and to hold the grills in engagement with the opposite sides of a 1 window frame, and means carried by one of the grills and engaging the locking bar to lock the latter against releasing movement.

'4. A window guard comprising a pair of grills adapted for positioning upright in the sash channelsat the opposite sides of a window frame, a pair of locking bars pivoted at opposite sides of one of the grills and with the free ends of the bars swingable into a straddling position at opposite sides of the other of said grills, a sloping abutment carried by said other grill and en-' gageable by a part of the locking bars upon a locking movement thereof to spread the grills apart and to hold the grills in engagement with the opposite sides of a Window frame, and means carried by one of the grills and engagingthe looking bars to lock the bars against releasing movement.

LEWIS E. LAMB.v

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Hill et a1. Feb. 27, 1940 

